generally speaking, the halogenated 2c-x's (2c-c, -b, -i) have less of a "deep" effect to them than the alkylated ones (2c-d, -e, -p, -ip). This being said, I had a ridiculous ++++ on 2c-i & MDMA several years ago. Total one with the universe moment for a while there. Though that was really my last worthwhile experience with 2c-i. I've had some fun ones, but not terribly useful.
I may have taken 2c-b once, frankly I'm not sure. Though extrapolating from my experience with 2c-c & 2c-i, (moreso 2c-c) I would imagine that a mystical type experience would be possible, but would take a bit of work from you. 2c-c is one of the most malleable psychedelics i've tried. Very user directed. I'm sure if you want to get into a mystical type head space it shouldn't be terribly difficult, but don't expect the drug to take you there all by itself, like LSD, 2c-e, or shrooms might.